(EN) The invention relates to the technical field of platinum group metals (PGMs) recovery, and provides a method for enriching platinum group metals in an aluminum-based waste catalyst by a pyrogenic process. For the waste catalyst for Al2O3 carrier, according to the method for capturing the platinum group metal through the pyrogenic process iron, a CaO-Al2O3-Fe2O3-B2O3 slag system is adopted, efficient enrichment of the platinum group metal is achieved through slag-iron separation, it is avoided that the CaO-MgO-Al2O3-SiO2 slag system generates insoluble platinum group metal-ferrosilicon alloy, and the recovery rate of the platinum group metal is increased. The method has the characteristics that the slag amount is small, the Fe-PGMs alloy does not contain silicon, the recovery efficiency ishigh, and the cost is low, and is suitable for industrial production.
(ZH) 本发明涉及铂族金属(PGMs)回收技术领域,提供了一种火法富集铝基废催化剂中铂族金属的方法。针对Al2O3载体废催化剂,公开了火法铁捕集铂族金属的方法,采用CaO‑Al2O3‑Fe2O3‑B2O3渣系,经渣铁分离实现高效富集铂族金属,避免了CaO‑MgO‑Al2O3‑SiO2渣系生成难溶铂族金属‑硅铁合金,提高了铂族金属的回收率。本发明具有渣量少、Fe‑PGMs合金不含硅、回收效率高、成本低的特点,适合于工业化生产。